(3f-4)(3f+4)=

Solution for (3f-4)(3f+4)= equation:

Simplifying
(3f + -4)(3f + 4) = 0

Reorder the terms:
(-4 + 3f)(3f + 4) = 0

Reorder the terms:
(-4 + 3f)(4 + 3f) = 0

Multiply (-4 + 3f) * (4 + 3f)
(-4(4 + 3f) + 3f * (4 + 3f)) = 0
((4 * -4 + 3f * -4) + 3f * (4 + 3f)) = 0
((-16 + -12f) + 3f * (4 + 3f)) = 0
(-16 + -12f + (4 * 3f + 3f * 3f)) = 0
(-16 + -12f + (12f + 9f2)) = 0

Combine like terms: -12f + 12f = 0
(-16 + 0 + 9f2) = 0
(-16 + 9f2) = 0

Solving
-16 + 9f2 = 0

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Add '16' to each side of the equation.
-16 + 16 + 9f2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 9f2 = 0 + 16
9f2 = 0 + 16

Combine like terms: 0 + 16 = 16
9f2 = 16

Divide each side by '9'.
f2 = 1.777777778

Simplifying
f2 = 1.777777778

Take the square root of each side:
f = {-1.333333333, 1.333333333}